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相关概念视频

Epistasis01:39

Epistasis

In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...

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Genotyping of Plant and Animal Samples without Prior DNA Purification
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通过PCR和qPCR来区分野生类型和异质合体形球 (Python regius).

R Kumsiri1, N N Yin2, P Kanchanaphum3

  • 1Rangsit University, Faculty of Science, Pathobiology Unit, Pathumthani, Thailand.

Brazilian journal of biology = Revista brasleira de biologia
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PubMed
概括

区分球型 (Python regius) 的基因型至关重要. 这项研究使用PCR和qPCR有效地区分野生类型,异合体皮巴德 (het piebald) 和皮巴德球,基于产品强度和Ct值.

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科学领域:

  • 类学 类学 类学 类学
  • 遗传学 是一个遗传学.
  • 分子生物学分子生物学

背景情况:

  • 球形 (Python regius) 是一个受欢迎的异国情调的物.
  • 区分野生类型与异合体形 (het piebald) 类型的表型可能具有挑战性.
  • 准确的基因型鉴定对于繁殖和保护是很重要的.

研究的目的:

  • 开发和验证分子方法来区分球型的基因型.
  • 用PCR和qPCR来区分野生类型的和球.
  • 为育种者和研究人员提供可靠的方法.

主要方法:

  • 用聚合酶链反应 (PCR) 来放大目标DNA序列.
  • 量化聚合酶连锁反应 (qPCR) 用于精确的量化.
  • 分析重点是PCR产品的大小,强度和定量PCR周期值 (Ct) 值.

主要成果:

  • 野生类型和 het piebald. 的PCR产品大小是一致的 (255 bp).
  • 野生类型的PCR产品强度是PCR产品强度的两倍,而皮类型的产品强度是PCR产品强度的两倍.
  • 没有检测到PCR产品在piebald个体;qPCR显示野生类型和 het piebald之间有15.45%的差异.

结论:

  • PCR和qPCR是有效的工具,用于区分野生类型,het piebald和piebald球型的基因型.
  • 这些分子技术为Python地区的精确遗传鉴定提供了一种可靠的方法.
  • 这些发现支持改善球形的管理和繁殖实践.